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ovs/lib/learn.h
Simon Horman dd43a55859 Do not perform validation in learn_parse();
I believe this is consistent with the handling of all other action
parsing called from parse_named_action().

Verification of all actions, including learn actions, occurs separately
in ofpact_check__(). It also occurs via in a call to ofpacts_check()
in parse_ofp_str(),

This patch is larger than might otherwise be expected as the flow argument
of learn_parse() is now unused and thus removed.  This propagates up the
call-chain some way.

This implementation was suggested by Jesse Gross in response to an
enhancement I made to the validation performed during parsing learn actions
to allow it to correctly account for changes to the dl_type due to MPLS
push and pop actions.

Tests have also been updated to check for the less specific messages
generated by the call to ofpacts_check() in parse_ofp_str() which at the
suggestion of Ben Pfaff was added by a prior patch for this purpose.

Cc: Jesse Gross <jesse@nicira.com>
Cc: Ben Pfaff <blp@nicira.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
2013-05-08 10:46:25 -07:00

46 lines
1.4 KiB
C

/*
* Copyright (c) 2011, 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LEARN_H
#define LEARN_H 1
#include "ofp-errors.h"
struct ds;
struct flow;
struct ofpbuf;
struct ofpact_learn;
struct ofputil_flow_mod;
struct nx_action_learn;
/* NXAST_LEARN helper functions.
*
* See include/openflow/nicira-ext.h for NXAST_LEARN specification.
*/
enum ofperr learn_from_openflow(const struct nx_action_learn *,
struct ofpbuf *ofpacts);
enum ofperr learn_check(const struct ofpact_learn *, const struct flow *);
void learn_to_nxast(const struct ofpact_learn *, struct ofpbuf *openflow);
void learn_execute(const struct ofpact_learn *, const struct flow *,
struct ofputil_flow_mod *, struct ofpbuf *ofpacts);
void learn_parse(char *, struct ofpbuf *ofpacts);
void learn_format(const struct ofpact_learn *, struct ds *);
#endif /* learn.h */